Microchip PIC
From Bashlinux
Cautions
Config
- NEVER disable the PIC's
/MCLR
(Reset) pin function - NEVER program a PIC "in circuit" with ANY other connections to the target board
Circuit Design
- ALWAYS set
MCLRE_ON
in the config options and haveMCLR
pin with a 10K pull-up resistor to Vdd.
Initialization
- ALWAYS set the input pins and clear the output pins, excepting UART TX/RX.
i.e. SDO should have TRISX bit cleared, SDI should have TRISX bit set.
Configuration Fuses
MPLAB 8.x
__CONFIG(1,HS&CPUDIV1) ; //use external crystal 4M __CONFIG(2,WDTDIS) ; //wtd off __CONFIG(3,PBADDIS) ; //Configure PORTB<4:0> pins as digital __CONFIG(4,XINSTDIS) ;
MPLAB X v2.35
#pragma config PLLDIV = 1 #pragma config CPUDIV = OSC1_PLL2 #pragma config FOSC = HS #pragma config WDT = OFF #pragma config PBADEN = OFF #pragma config XINST = OFF
SDK/IDEs
- mpide: Arduino like IDE for ChipKit & Fubarino